Machine for manufacturing paper cartons.



A BL STARR. I

MACHINE FOR MANUFACTURING PAPER CARTONS.

APPLICATION FILED AFR.4. 1914.

Patented Nov. 23, 1915.

W MA;- AM

a nve W601,

ALDEN i3. swarm, on NEW relax, at. Y.

ivmonrnnron MANUFACTURING PAPER. onrxrons.

Application filed April 4, 1914.

To all whom it may concern:

Be it known that I, ALDEN B. STARR, a citizen of the United States,residing at the city of New York, borough of Manhattan, and State of NewYork, have invented certain new and useful Improvements in Machines forManufacturing Paper Cartons, 01" which the following is a full, clear,and exact description.

This invention relates to a machinewor press adapted for use in themanufacture of packages or receptacles.

The machine has special application in the manufacture of paper cartonswhose walls are provided with an internal head near one end which formsa jseat for the disk shaped bottom of the carton, (thewa'lls ol thecarton extending beyond the loottom being crimped or curved .down overthe bottom to securely hold it in place. It has been found that fromcutting a tube .of a proper size for a carton from alength of tubing andalso from subsequentgr'oov-ing of the tube, that variations frequentlyocour in the heights of the GilwI'tQllS; ll-f the paper cartons are .tobe filled .by the use of automatic machinery, this variation in theheights of the packages interlieres, to a material extent, withtheproper leeding of them to the automatic machine and with the followingoperations during which they are filled. Any variations in the heightsof the cartons will also hinder them from being properly packed fortransportation.

The primary object .of the invention is, therefore, to provide a machineor pre which is adapted to reduce the cartons to a uniform height andwith this .object in view, the invention consists essentially in twosynchronously revolving plates, which plates are arranged slightly out.ofparallelism with the distance between the, plates at their points ofgreatest separation sufficient to permit the packages .or cartons to beinserted in upright position -Jtherehet-Ween,

whereby, upon-the rotation of ,the .platesgto a position in which thedistance between the plates is decreased, a pressure will be exertedupon the walls of the package in ,a direction parallel to itslongitudinal axis. Since the walls ,of the package are weakest in thezone of the internalLbead, the pressure exerted will cause this bead toflatten, tending to force the walls of the head to- .gether -and reducethe carton to .a standard Specification of Letters Patent.

Patentedhlov. 23, T2915. Serial in. 829,701.

height. The flattening of the internal bead will also tend to make thejoint between the cylindrical walls more secure so that the package isequally as well adapted to be used as a container for liquids as solids.

Other objects ofthe invention will be apparentto one skilled in the artfrom the description and will be particularly. pointed out in theappended claims.

In the accompanying drawing, the figure represents a front elevation ofa machine constructed in accordance with and embodying the principles ofmy invention, portions of the same being shown in section.

The bed of the machine consists of a cylindrical pillar or post 2mounted on a base 3. Projecting upwardly, from the center of the'top ofthe post and arranged-axially therewith is a spindle 4:, which'is ol'sufficient diameter to withstand the .bending strains to which it issubjected, as will later appear. The lower portionof the spindle isvertically disposed and carries a .circular dial-plate 5 of relativelylarge diameter which forms the revolving table upon which the cartonsare placed. The plate 5 is preferably ribbed as at .6 an"d is providedwith a hub to give it the requisite strength to avoid .any tilting ofthe plate on .thespin- Concentnically disposed on the circular plate .5is annular ring 8 of somewhat less diameter which forms a stop :orggageagainst which the walls of the cartons 9 abut whenv placed upon thetable, so that the cartons are arranged radially equi-distant from thecenter of the table. In {the accompanying drawing only two of suchcartons are shown, ;-but it is to be understood that the .cartons aresuccessively fed or placed npri'ght ,upon the dial-plate v5 in theannular space between the ring *8 and .the peripheral edge of the table,with their walls almost touchingeach other. The table or dial-plate 5Iis:revolvedby means of a worm-wheel 1O mounted on the spindle 4 below theplate, which worm-wheel is secured to the dialplate in any ,approyedfiashion. Projecting laterally from the post 2 is a substantially.rig'htrangled bracket 11 which is cut away Fat its upper lQ/I'ld toprovide bearings 12- for the worm 13 which is mounted .on a shatt .ll.Tight and loosepnllgays 15 .and 16, respectively aremounted tipon thetree-end of the Sh t h i The upper portion of the spindle lis bent at aslight angle to the vertically-disposed portion, the bend occurringsubstantially at second revoluble plate 20 which is also pref- I erablyribbed and which is free to revolve upon the spindle. The plate 20 isconnected for rotation to the lower plate 5 by means of verticallydisposed pins 21 which are rigidly fastened to the lower plate and passthrough elongated slots 22 in the upper plate, the slots being longerthan the diameter of the pins so that the upper plate will be free tomove angularly with respect to the pins when rotated. Since the upperportion of the spindle 4 is arranged at a slight angle to thevertically-disposed lower portion, the upper revoluble plate 20 isslightly out of parallelism with the lower plate 5, and upon therotation of the plates the distance between the opposite portions of theworking faces of the'two plates will vary in different angular positionsof the plates, the portions being displaced the maximum distance apartwhen they are in a position shown on the right hand side of the view anda minimum when they occupy a position at 180 therefrom, or, in theposition shown at the left hand side of the view.

The operation ofthe machine will now be described.

Assuming that the plate or table 5 is being driven continuously byv theworm-drive shown and the plate 20.rotated therewith by means of the pins21. The cartons 9 are successively placed in upright position upon thetable with their walls abutting the ring 8 when opposite portions of theworking faces of the plates 5 and 20 successively reach their point ofgreatest separation or in the position shown at the right hand side ofthe figure. As the plates are rotated the portion of the working face ofthe plate 20 opposite the upper end face of each carton will graduallyapproach the end surface of the cylindrical walls of the carton until itrests thereon and finally exerts a pressure which will be transmitted tothe walls of the carton to crush the internal annular bead of thepackage and slightly flatten the same as is clearly shown in theleft-hand side of thefigure. The joint between the disk forming thebottom of the carton and the walls is therefore made more secure so thatthe cartons are adapted for use as containers for liquids. The collars18 and 19 are clamped upon the upper portion of the spindle 4 in suchposition that the plate 20 is maintained separated from the plate 5 adistance which, when the opposed portion of the working faces of theplates 5 and 20, which cover the end faces of the carton, are a minimumdistance apart the distance is equal to the correct height of thepackage and since each of the cartons 9 is arranged upon the table 5with its walls abutting the ring 8 which is concentrically arranged withthe table 5, it is evident that the cartons'will all be reduced to auniform height. During the other half of the revolution the portions ofthe faces of the plates 20, which are covered by the end faces of thecarton, will, successively, gradually move away from the table 5 untilthe position shown in the right-hand end of the figure is again reachedby the portions of the working face of the plate 20 opposite the endface of each carton, where the same may be removed and replaced by a newone.

Since the diameters of the revoluble plates 5 and 20 are relativelylarge and the amount which the plates are arranged out of parallelismwith each other relatively small, the fact, that the upper plate 20 willcrush the cylindrical walls of the carton so that its end face is out ofparallelism with the other end face, is immaterial for by choosingplates of sufficiently large diameter this distortion may be renderednegligible.

I claim 1. In a machine of the character described, two revolublepresser plates having plane working surfaces mounted in spaced relationto each other with their working faces slightly out of parallelism witheach other and adapted to receive a paper carton in upright positionbetween them, and means for synchronously revolving said plates.

2. In a machine of the character described, two revoluble presser plateshaving plane working surfaces mounted in spaced relation to each otherwith their working faces slightly out of parallelism with each other andadapted to receive a paper carton in upright position between them, andmeans for synchronously revolving said plates, one of said plates beingadjustably mounted whereby the distance between the working faces of theplates may be varied.

. 3. In a machine of the character described, two revoluble presserplates having plane working surfaces arranged in spaced relation to eachother and adapted to receive a paper carton in upright position betweenthem, and means for synchronously moving said plates in rotary paths inwhich the dis tance between opposed portions of the working faces of theplates varies slightly in the different angular positions of the plates.

4. In a machine of the character described, two revoluble presser plateshaving plane working surfaces arranged in spaced relation to each otherand adapted to receive a paper carton in upright position between them,means for synchronously moving said plates in rotary paths in which thedistance between opposed portions of the working faces of the platesvaries slightly in the different LLN angular positions of the plates,and means for bodily adjusting one of said plates relatively to theother.

5. In a machine of the character described, tWo revoluble presser plateshaving plane Working surfaces spaced from each other, the Working!surfaces of said plates being arranged slightly out of parallelism Witheach other and adapted to receive a carton between them in the positionof greatest separation of the opposed portions of the Work ing faces ofthe plates and upon rotation of the plates to exert a pressure upon theWalls of the carton when the opposed portions of the working faces ofthe plates gradually approach each other, and means for synchronouslyrevolving said plates.

6. In a machine of the character described, two revoluble presser plateshaving plane Working surfaces mounted in spaced relation to each otherWith their Working faces slightly out of parallelism and adapted toreceive a paper carton between them in upright position, means forsynchronously revolving said plates, and means mounted on one of saidplates for spacing the cartons at an equal distance from the center ofsaid plate.

In Witness whereof, I subscribe my signature, in the presence of tWoWitnesses.

ALDEN l3. STARR. l/Vitnesses:

WALDO M. CHAPIN, JOSEPH BUGKLEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

